WO2022000817A1

WO2022000817A1 - Wireless communication method and wireless communication device

Info

Publication number: WO2022000817A1
Application number: PCT/CN2020/117083
Authority: WO
Inventors: 柯海涛
Original assignee: 炬芯科技股份有限公司
Priority date: 2020-06-29
Filing date: 2020-09-23
Publication date: 2022-01-06
Also published as: EP4110003A4; CN111867144A; US20230156825A1; CN111867144B; EP4110003A1; US11659604B1

Abstract

The main purpose of embodiments of the present invention is to provide a wireless communication method, comprising: a source device establishes a first communication link with a first device; after acquiring link information of the first communication link, a second device switches as a shadow device of the first device; and the second device interacts with the first device by means of the first communication link. The embodiments of the present invention also provide a wireless communication device, correspondingly. The use of the technical solution provided in the embodiments of the present invention can simplify communication connection modes between multiple devices and achieve wireless communication between multiple devices.

Description

A wireless communication method and wireless communication device

technical field

The present application relates to communication technologies, and in particular, to a wireless communication method and wireless communication device.

Background technique

In the existing wireless communication technology, many products work together with multiple devices, and a lot of information exchange is required between devices. For example, in our common wireless stereo headset application, the mobile phone communicates with the master and slave devices of Bluetooth and Bluetooth TWS. Wireless connection involves the connection of mobile phones, TWS main headphones and TWS sub headphones, or the connection of similar devices such as Bluetooth speakers. The connection between these multiple devices requires establishing an actual communication link, and then relying on the actual link to transmit data information between the devices, such as audio data.

The interaction between multiple devices in the prior art generally has the following modes. First, in the connection relationship established as shown in Figure 1, an actual communication link 1 is established between the data source device and device 1, and device 1 and device 2 are established. The actual traffic link 2 is established between the two, the joining of link 2 will divide the time slice originally belonging to link 1, and the complexity of the system including link 1 and link 2 will increase, etc., as more devices communicate The link will be more complex; 2: The connection relationship established as shown in Figure 2, each device communicates in the form of broadcasting through one device or multiple devices, and device 1 will need to notify device 2, device 3, and device 4. Messages are transmitted by broadcasting, which requires the introduction of broadcasting communication, which also occupies the time slice between the data source device and device 1, and increases the logical complexity of the entire communication system accordingly.

SUMMARY OF THE INVENTION

In view of this, the main purpose of the embodiments of the present invention is to provide a wireless communication method, which can simplify the communication connection between multiple devices.

The embodiments of the present invention are implemented in this way, a wireless communication method includes:

The source device establishes a first communication link with the first device;

The second device switches to the shadow device of the first device after acquiring the link information of the first communication link;

The second device interacts with the first device over the first communication link.

Further, the interaction between the second device and the first device through the first communication link includes:

When the first device sends communication data to the source device, the second device obtains the communication data and interacts with the first device.

Further, the method further includes: the second device enters a specific discovery mode, and the specific discovery mode uses a specific access code to access the first communication link.

Further, the specific access code includes: an identification number or identification code pre-agreed between the second device and the first device.

Further, obtaining the communication data by the second device to interact with the first device includes: the second device monitoring communication data in the first communication link, where the communication data is the first communication link Interaction data in a specific format in the route, where the interaction data in a specific format is information that needs to be exchanged between the first device and the second device.

Further, the interaction data in a specific format includes: the ID number of the interaction data, the length of the interaction data, and the content of the interaction data.

Further, the second device includes at least one wireless communication device, and the wireless communication device respectively acquires the link information of the first communication link and then switches to be a shadow device of the first device.

Further, the method further includes: dynamically setting the interaction frequency between the first device and the source device and/or the second device according to a usage scenario.

Further, the dynamic setting of the interaction frequency between the first device and the source device and/or the second device according to the usage scenario includes:

The first device is a host in the first communication link, and the first device selects a preset quality of service parameter adjustment poll period; or

The first device is a slave in the first communication link, and the first device selects a preset quality of service parameter and adjusts the poll period after obtaining the response consent of the source device; or

Adjust the sniff period of the first communication link.

Further, the method further includes: switching the relationship between the second device and the first device.

Further, the method further includes: the second device switches to a receiving sequence, and receives the data sent by the first device to the source device.

According to another aspect of the embodiments of the present invention, the embodiments of the present invention further provide a wireless communication device, which can simplify a communication connection manner between multiple devices.

The embodiments of the present invention are implemented in this way, a wireless communication device includes:

acquiring means, configured to acquire link information of the first communication link between the source device and the first device;

a switching device, configured to switch to a shadow device of the first device according to the link information of the first communication link;

Interaction means for interacting with the first device through the first communication link.

Further, the interaction device further includes:

A monitoring device, configured to obtain the communication data and interact with the first device when the first device sends communication data to the source device, where the communication data is interaction data in a specific format in the first communication link , the interaction data in a specific format is information that needs to be exchanged between the first device and the second device.

According to the above technical solutions, the embodiments of the present invention have the following effects: at least one second device obtains the communication link information between the source device and the first device, so that the state of the second device can become a shadow device of the first device, Become a shadow device to acquire communication data between the first device and the source device; use a specific access code to access the first communication link through a specific discovery mode to acquire the interaction data that the first device needs to transmit to the second device; By adopting the technical solution, wireless communication between multiple devices can be realized without adding an additional communication mode, but only by properly borrowing the existing communication link path.

Description of drawings

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 shows a schematic diagram of a wireless communication manner between multiple devices provided by the prior art;

FIG. 2 shows a schematic diagram of another wireless communication manner between multiple devices provided by the prior art;

Fig. 3 shows the flow chart of the wireless communication method provided by the present application;

FIG. 4 shows a schematic diagram of a wireless communication method provided by the present application;

FIG. 5 shows a schematic diagram of another wireless communication method provided by the present application;

FIG. 6 shows a schematic diagram of another wireless communication method provided by the present application.

detailed description

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. The sequence of steps in the following embodiments is only for enumeration, and may be adjusted if there is no conflict.

As shown in FIG. 3, it is a wireless communication method provided by an embodiment of the present invention, including the following steps:

S101, a source device establishes a first communication link with a first device;

S102, the second device switches to the shadow device of the first device after acquiring the link information of the first communication link;

S103, the second device interacts with the first device through the first communication link.

A first communication link is established between the source device and the first device, and the two can send communication data to each other. For example, after a communication link is established between the first device and the source device, the first device can receive the data sent by the source device. Audio data, voice data and other data, when a second device needs to join the communication network with the first device and the source device, the second device obtains the link information of the first communication link, and then the second device switches its own state Being a shadow device of the first device, the second device interacts with the first device through the first communication link. The shadow device is relative to the first device here, that is, the second device has two states or forms at different times. The second device is in one state before switching to the shadow device of the first device, and it is switched to the shadow device. After the device is a state. The second device obtains the information parameter set of the first communication link established by the source device and the first device, so that the second device can monitor or eavesdrop on the communication data of the first communication link, so that the first device can communicate with the second device. Interactive information when the device acts as a shadow device. After the second device acquires the link information parameter set of the first communication link and switches to a shadow device, it can pretend to be the same as the first device and monitor the communication data in the first communication link, so that it can also obtain the first device. The device needs data that needs to exchange information with the second device, etc., to realize the information exchange between the first device and the second device.

The embodiment of the present invention provides a preferred embodiment. In the process of the above embodiment, the interaction between the second device and the first device through the first communication link specifically includes: when the first device sends a communication to the source device data, the second device acquires the communication data and interacts with the first device. In this embodiment, when the first device wants to perform data interaction with the second device, instead of directly transmitting data to the second device, the first device sends the interaction data to the source device through the first communication link, and At this time, the second device monitors the aforementioned communication data sent to the source device as a shadow device state, and in this way completes the interaction of the first device sending the communication data to the second device. As shown in FIG. 4 , the communication network relationship between multiple devices is described in detail. In this embodiment, the second device enters a specific discovery mode and uses a specific access code to access the first communication link. The link information between the source device and the first device is obtained through the specific discovery mode, triggered by an external event, and a predetermined button or a predetermined command is set. The first device enters the specific discovery mode, and the second device turns itself into a The shadow device of the first device implements monitoring of the transmission data between the first device and the source device. The specific access code is an identification number or identification code pre-agreed between the second device and the first device, and is used to implement the agreed interaction between the two. The specific discovery mode is a search and scan access method using a specific access code.

The present invention provides another embodiment. As shown in FIG. 6 , the interaction between the second device acquiring the communication data and the first device includes: the second device monitoring the communication data in the first communication link, The communication data is interaction data in a specific format in the first communication link, and the interaction data in a specific format is information that needs to be exchanged between the first device and the second device. In actual use, the first device needs the second device for data interaction, for example, it needs to agree to play or other applications. As shown in Figure 5, the format or scene can be expanded or set according to the situation, and the first device sends the data through the first communication link. The interactive data in a specific format is sent to the data source device, and the data is sent by using the existing path between the first device and the source device, and the second device acts as a shadow device at this time. The first device sends the interactive data in this specific format to the data source device. At the same time, switch to the receiving sequence, receive the data sent by the first device to the source device, and the second device will receive the data sent by the first device, so as to achieve the exchange of information between the first device and the second device. Purpose. Here, the interaction data in a specific format sent by the first device to the source device in the first communication link is the data information that the first device wants to interact with the second device. In the first communication link, the source device has indeed received these data, but due to the lack of a specific access code, the source device may not know the true meaning of these data. Of course, in the design, the source device may also be preset. In order to understand the specific discovery mode, the interaction information of these specific formats can be accurately parsed. In actual transmission, the interactive data formats of these specific formats are shown in Table 1 below, including: the ID number of the interactive data Data ID, the length of the interactive data Data len and the content data of the interaction data.

Data type

Data id

Data len

data

Table 1

The present invention provides a preferred embodiment, the second device includes at least one wireless communication device, and the wireless communication device respectively acquires link information of the first communication link and then switches to be a shadow device of the first device. As shown in FIG. 4 , FIG. 5 , and FIG. 6 , the second device may be one or more wireless communication devices. When each wireless communication device needs to interact with the first device, it can use the solution of any of the above embodiments to It becomes a shadow device of the first device, so that each second device can monitor the communication data between the first device and the source device to realize data interaction between the first device and itself.

Further, the method further includes: dynamically setting the interaction frequency between the first device and the source device and/or the second device according to a usage scenario. Specifically, the following situations are included:

1. The first device is the host in the first communication link, and the first device selects a preset quality of service parameter to adjust the poll period; after the first device is connected to the source device, the first device plays the role of the master, Then, the first device can select a corresponding quality of service parameter to adjust the poll period to ensure that the data that the first device needs to send to the source device can be transmitted as soon as possible, thereby ensuring the frequency of data interaction between the first device and the second device.

2. The first device is a slave in the first communication link, and the first device selects a preset quality of service parameter and adjusts the poll period after obtaining the response consent from the source device; the relationship between the first device and the source device is The first device acts as a slave, then the first device can select the corresponding quality of service parameters, interact with the source device at the same time, and adjust the poll cycle after obtaining the response from the source device, so as to ensure that the first device and the first device The frequency of data exchange between the two devices.

3. Adjust the sniff period of the first communication link, and also adjust the sniff period between the first device and the source device, so as to ensure the frequency of data interaction between the first device and the second device.

The present invention provides a preferred embodiment. On the basis of the above-mentioned embodiment, the relationship between the second device and the first device is switched. Specifically, after the first communication link is established between the first device and the source device, the second device switches to become the shadow device of the first device. When the role is played, the first device and the second device agree on a timing point for the exchange. When the timing point is reached, the second device becomes a real device that establishes a real link communication with the source device and interacts, and the first device becomes the first device. The shadow device of the second device.

According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a wireless communication device. The wireless communication device described in this embodiment mainly refers to a second device that can be switched to a shadow device state in the aforementioned wireless communication method. The embodiments of the present invention are implemented in this way, a wireless communication device includes:

Specifically, a first communication link is established between the source device and the first device in the external communication network, and the two can send communication data to each other. For example, after the communication link is established between the first device and the source device, the first A device can receive audio data, voice data and other data sent by the source device. When the wireless communication device in the embodiment of the present invention needs to join the communication network with the first device and the source device, the first communication link is obtained through the obtaining device. the link information of the first communication link, the switching device switches its own state to the shadow device of the first device according to the link information of the first communication link, and the interaction device makes the state of the embodiment of the present invention through the first communication link The wireless communication device can interact with the first device. The shadow device is relative to the first device here, that is, the above-mentioned two states or forms of the wireless communication device in different periods. The obtaining means obtains the information parameter set of the first communication link established by the source device and the first device, and the communication data of the first communication link of the interaction means, so as to realize that the first device can communicate with the wireless communication device described in the embodiment of the present invention. Exchange information when acting as a shadow device. After the acquisition device acquires the link information parameter set of the first communication link, the switching device switches itself to be a shadow device and can pretend to be the same as the first device, and monitors the communication data in the first communication link through the interaction device, thereby It is also possible to acquire data that the first device needs to exchange information with this wireless communication device, so as to realize information exchange between the wireless communication device and the first device.

The embodiment of the present invention also provides a preferred embodiment. On the basis of the above embodiment, the wireless communication device further includes a monitoring device, configured to acquire the communication data when the first device sends the communication data to the source device Interacting with the first device, the communication data is interaction data in a specific format in the first communication link, and the interaction data in a specific format is information that needs to be exchanged between the first device and the second device .

Specifically, when the first device wants to perform data interaction with the wireless communication device provided by the embodiment of the present invention, it does not directly transmit data, but the first device sends the interaction data to the source device through the first communication link, and The wireless communication device, as a shadow device, monitors the communication data sent by the first device to the source device through the monitoring device, and in this way completes the interaction of the first device teaching the communication data to the wireless communication device. As shown in FIG. 4 , the wireless communication device (the second device in the figure) enters a specific discovery mode, and uses a specific access code to access the first communication link. The acquiring device acquires the link information between the source device and the first device through a specific discovery mode, and is triggered by an external event, setting a predetermined button or a predetermined command, etc., the first device enters the specific discovery mode, and the switching device wirelessly communicates at this time. The device itself becomes the shadow device of the first device, and monitors the transmission data between the first device and the source device through the monitoring device.

The embodiments of the embodiments of the present invention related to the part of the wireless communication device have been described in detail in the above method flow, and will not be repeated in this part.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of its equivalent features. For example, a technical solution is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.

Claims

A wireless communication method, comprising:

The source device establishes a first communication link with the first device;

The second device switches to the shadow device of the first device after acquiring the link information of the first communication link;

The second device interacts with the first device over the first communication link.
The wireless communication method according to claim 1, wherein the interaction between the second device and the first device through the first communication link comprises:

When the first device sends communication data to the source device, the second device obtains the communication data and interacts with the first device.
The wireless communication method according to claim 2, wherein the method further comprises: the second device enters a specific discovery mode, and the specific discovery mode uses a specific access code to access the first communication link .
The wireless communication method according to claim 3, wherein the specific access code comprises: an identification number or an identification code pre-agreed between the second device and the first device.
The wireless communication method according to claim 2, wherein the obtaining, by the second device, the communication data and interacting with the first device comprises: the second device listening for a signal in the first communication link. Communication data, the communication data is interaction data in a specific format in the first communication link, and the interaction data in a specific format is information that needs to be exchanged between the first device and the second device.
The wireless communication method according to claim 5, wherein the interaction data in a specific format comprises: the ID number of the interaction data, the length of the interaction data and the content of the interaction data.
The wireless communication method according to any one of claims 1 to 6, wherein the second device includes at least one wireless communication device, and the wireless communication device respectively acquires link information of the first communication link and switches to A shadow device of the first device.
The wireless communication method according to any one of claims 1 to 6, wherein the method further comprises: dynamically setting the communication between the first device and the source device and/or the second device according to a usage scenario frequency of interaction.
The wireless communication method according to claim 8, wherein the dynamic setting of the interaction frequency between the first device and the source device and/or the second device according to a usage scenario comprises:

The first device is a host in the first communication link, and the first device selects a preset quality of service parameter adjustment poll period; or

The first device is a slave in the first communication link, and the first device selects a preset quality of service parameter and adjusts the poll period after obtaining the response consent of the source device; or

Adjust the sniff period of the first communication link.
The wireless communication method according to any one of claims 1 to 6, wherein the method further comprises: performing a relationship switch between the second device and the first device.
The wireless communication method according to any one of claims 1 to 6, wherein the method further comprises: the second device switches to a receiving sequence, and receives the data sent by the first device to the source device.
A wireless communication device, comprising:

acquiring means, configured to acquire link information of the first communication link between the source device and the first device;

a switching device, configured to switch to a shadow device of the first device according to the link information of the first communication link;

Interaction means for interacting with the first device through the first communication link.
The wireless communication device according to claim 12, wherein the interaction means further comprises:

A monitoring device, configured to obtain the communication data and interact with the first device when the first device sends communication data to the source device, where the communication data is interaction data in a specific format in the first communication link , the interaction data in a specific format is information that needs to be exchanged between the first device and the second device.